The concern by various countries about the huge impacts that natural disasters have on societies is increasing. The destruction, loss of life and livelihoods has in the recent past led to an increased allocation of funds to building a resilient society. Technology to share information, predict and forecast such disasters like floods and tsunamis has also been improving and getting more efficient over time. 

The various aspects of risk knowledge, warning services on a sound scientific basis, communication and dissemination, and response capabilities are critical in putting in place an early warning system.  Earth Observation technologies have enabled the development of risk profiling and pre-post analysis of hazards.